<?php
    if (!defined('PCLZIP_TEMPORARY_DIR')) {
        define('PCLZIP_TEMPORARY_DIR', PHPExcel_Shared_File::sys_get_temp_dir() . DIRECTORY_SEPARATOR);
    }
    require_once PHPEXCEL_ROOT . 'PHPExcel/Shared/PCLZip/pclzip.lib.php';

    /**
     * PHPExcel_Shared_ZipArchive
     * Copyright (c) 2006 - 2015 PHPExcel
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     * @category   PHPExcel
     * @package    PHPExcel_Shared_ZipArchive
     * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
     * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
     * @version    ##VERSION##, ##DATE##
     */
    class PHPExcel_Shared_ZipArchive {
        /**    constants */
        const OVERWRITE = 'OVERWRITE';
        const CREATE    = 'CREATE';
        /**
         * Temporary storage directory
         * @var string
         */
        private $tempDir;
        /**
         * Zip Archive Stream Handle
         * @var string
         */
        private $zip;

        /**
         * Open a new zip archive
         * @param    string $fileName Filename for the zip archive
         * @return    boolean
         */
        public function open($fileName) {
            $this->tempDir = PHPExcel_Shared_File::sys_get_temp_dir();
            $this->zip     = new PclZip($fileName);
            return true;
        }

        /**
         * Close this zip archive
         */
        public function close() {
        }

        /**
         * Add a new file to the zip archive from a string of raw data.
         * @param    string $localname Directory/Name of the file to add to the zip archive
         * @param    string $contents  String of data to add to the zip archive
         */
        public function addFromString($localname, $contents) {
            $filenameParts = pathinfo($localname);
            $handle = fopen($this->tempDir . '/' . $filenameParts["basename"], "wb");
            fwrite($handle, $contents);
            fclose($handle);
            $res = $this->zip->add($this->tempDir . '/' . $filenameParts["basename"], PCLZIP_OPT_REMOVE_PATH, $this->tempDir, PCLZIP_OPT_ADD_PATH, $filenameParts["dirname"]);
            if ($res == 0) {
                throw new PHPExcel_Writer_Exception("Error zipping files : " . $this->zip->errorInfo(true));
            }
            unlink($this->tempDir . '/' . $filenameParts["basename"]);
        }

        /**
         * Extract file from archive by given fileName (Emulate ZipArchive getFromName())
         * @param        string $fileName Filename for the file in zip archive
         * @return        string  $contents        File string contents
         */
        public function getFromName($fileName) {
            $index = $this->locateName($fileName);
            if ($index !== false) {
                $extracted = $this->getFromIndex($index);
            } else {
                $fileName = substr($fileName, 1);
                $index    = $this->locateName($fileName);
                if ($index === false) {
                    return false;
                }
                $extracted = $this->zip->getFromIndex($index);
            }
            $contents = $extracted;
            if ((is_array($extracted)) && ($extracted != 0)) {
                $contents = $extracted[0]["content"];
            }
            return $contents;
        }

        /**
         * Find if given fileName exist in archive (Emulate ZipArchive locateName())
         * @param        string $fileName Filename for the file in zip archive
         * @return        boolean
         */
        public function locateName($fileName) {
            $fileName = strtolower($fileName);
            $list      = $this->zip->listContent();
            $listCount = count($list);
            $index     = -1;
            for ($i = 0; $i < $listCount; ++$i) {
                if (strtolower($list[$i]["filename"]) == $fileName || strtolower($list[$i]["stored_filename"]) == $fileName) {
                    $index = $i;
                    break;
                }
            }
            return ($index > -1) ? $index : false;
        }

        public function getFromIndex($index) {
            $extracted = $this->zip->extractByIndex($index, PCLZIP_OPT_EXTRACT_AS_STRING);
            $contents  = '';
            if ((is_array($extracted)) && ($extracted != 0)) {
                $contents = $extracted[0]["content"];
            }
            return $contents;
        }
    }
